Surely many of you who are using the HONDA INSIGHT have encountered the notification shown in the image below, but don’t know how to reset it.

For the HONDA INSIGHT model, maintenance warnings will appear periodically as follows:
- When the vehicle reaches around 38,000 km, the message “Maintenance due soon: HMMF” will appear.
- When the vehicle reaches around 39,000 km, the message “Please perform maintenance: HMMF” will appear.
- When the vehicle reaches around 40,000 km, the message “Maintenance is overdue: HMMF” will appear.
After long periods of use, friction causes the transmission fluid to become dirty. To ensure stable and durable transmission performance, you should regularly maintain and replace the transmission fluid. Not only the transmission fluid, but also other types of fluids such as engine oil (around every 5,000 km), brake fluid (every 2 years), power steering fluid, etc., should also be replaced periodically to keep the systems running smoothly.
Back to the issue with the INSIGHT vehicle: Suppose the car displays such a notification but the transmission fluid is not changed—what happens? This is a question that many have asked MIT AUTO JAPAN. For automatic transmission cars, the power from the engine is transmitted to the gearbox through the HMMF transmission fluid. Therefore, if you do not change the transmission fluid and continue driving, the car will initially operate normally. However, gradually, the components will no longer function smoothly. Signs to watch for include a jerky feeling when pressing the accelerator, sluggish engine response, reduced acceleration ability, and increased fuel consumption.
Some customers feel quite annoyed when they start their car and see this notification. So, how can you turn off the periodic transmission fluid maintenance warning for HMMF on the HONDA INSIGHT? MIT AUTO JAPAN will guide you on HOW TO RESET THE HMMF TRANSMISSION FLUID CHANGE WARNING ON THE HONDA INSIGHT so you can do it yourself directly on your car. It takes less than one minute to complete.
Step 1:
Turn the ignition key to the OFF position.
Step 2:
Press and hold the SEL RESET button, then turn the ignition key to the ACC position (ACC position: turn the key to the second notch, and the display on the instrument panel will turn on) for 10 seconds.

After completing Step 2, the screen will display as shown in the image below. We will then proceed to...
Step 3:
Use the UP or DOWN arrow buttons to navigate to the RESET option (the selected item will have a white background).

Step 4:
After selecting the リセット option, press the SEL RESET button again.
And that completes the procedure to RESET the periodic HMMF transmission fluid change warning on the HONDA INSIGHT.
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